feat: add Plausible analytics with 404 tracking#179
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Configures Plausible via the Mintlify integrations field and adds a global script that fires a custom 404 event whenever a visitor lands on a missing page. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Mintlify renders "Page Not Found" as the document title on 404 pages, not "404". Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The previous window.load approach fired before React hydration set the page title in Mintlify's Next.js SPA. Switching to a MutationObserver on <title> ensures the check runs whenever React updates the title, both on initial load and SPA navigations. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The title is set client-side by React so querySelector('title') returns
null and the MutationObserver never attached. Next.js sets
id="__next_error__" on <html> in the server-rendered HTML for all error
pages, giving a reliable synchronous signal to detect 404s.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
integrations.plausible.domainindocs.jsonplausible-404.js— a global script that fires a custom404Plausible event when a visitor hits a missing page, per the Plausible 404 tracking guideSetup required in Plausible dashboard
The
404custom goal has already been added to the Plausible dashboard. No further action needed.Test plan
/does-not-exist)404event appears in the Plausible Goals tab with the correct path🤖 Generated with Claude Code